Repair manual

2-5
THEORY OF OPERATION
List of Illustrations
Figure 2-1 Exposure System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Figure 2-2 AC/DC Power System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Figure 2-3 Logic Controller P.C. Board Simplified Block Diagram. . . . . . . . . . . 2-17
Figure 2-4 Phase-Locked Loop Frequency Synthesizer Block Diagram. . . . . . . . 2-46
Figure 2-5 Monitor P.C. Board Simplified Block Diagram. . . . . . . . . . . . . . . . . . 2-57
Figure 2-6 Cathode Ray Tube. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-60
Figure 2-7 Digital Palette Simplified Block Diagram. . . . . . . . . . . . . . . . . . . . . . . 2-80
Figure 2-8 System Interconnection Wiring Diagram. . . . . . . . . . . . . . . . . . . . . . . 2-81
Figure 2-9 Logic Controller P.C. Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-82
o Microprocessor Control Network/DRAM Memory Sheet 1 2-82
o VRAM Memory Sheet 2 2-83
o Horizontal Timing Down Counter Sheet 3 2-84
o Video Generation and Pixel Clock Sheet 4 2-85
Frequency Synthesizer
o Hardware Control/SCSI Interface Sheet 5 2-86
o Centronics Parallel Port Interface Network Sheet 6 2-87
o Vertical Deflection/Auto Luminance Control Sheet 7 2-88
Figure 2-10 Monitor P.C. Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-89
Figure 2-11 Small Computer System Interface (SCSI) P.C. Board. . . . . . . . . . . . . 2-90